Buyer Requests (BR) is FOR BUYERS to request custom offers from Sellers.
(see Key Terms etc. in following link on what is a buyer, a seller, an order, an offer, a gig etc. and memorize them - it´s easier to get correct replies on the forum when you post about issues, if you use the correct terms so everyone knows what you´re talking about: https://www.fiverr.com/terms_of_service)
It is NOT for Sellers to post their Gigs and services and offers, actually that can get you into trouble.
Kindly do not post your services as a post in BR if you are a Seller - it might get your account disabled, that means: you could be banned from Fiverr. Surely you don´t want that, so better don´t risk it. Quote from the Fiverr-site:
Note: Misuse of the Buyer Request feature, such as advertising your services as a seller, may lead to your account being disabled. (http://support.fiverr.com/hc/en-us/articles/204076146-Submitting-Offers-to-Buyer-Requests)
It is for Sellers in so far that Sellers can REPLY TO requests BUYERS make in BR.
You, the Seller, does not post a request there - the Buyer posts a request, and you can reply by sending an offer to that request.
Where is BR? Hover your mouse over your user name/profile icon,
click Selling > Buyer Requests.
You can filter them per category of your Gigs.
You can even search them, box top right, for specific keywords.
BR isn´t continually updated, if you see no new BRs, give it time.
Also, depending on the number of Gigs/categories your Gigs are in, no new BRs might simply mean there are no new BRs, especially during a weekend or holidays.
If you feel as if there usually would be new BRs by now, you can try to log out of all instances of Fiverr you are logged in and clear cache ‘n’ cookies of your browser.
If BRs won´t update over a long period and cache clearing doesn´t help, you can always ask on the forum if you are the only one (would be useful to add the category you usually see BRs for), or open a ticket with Customer Support (CS).
You have a limit of 10 offers you can send to BR per day. Keep that in mind, you might want to ‘save’ at least 1 until before you´ll log off for the day, so you are not out of offers to send, if a really good BR for you comes along.
Do read the BR you are replying to carefully, so the Buyer will know from the text of your message that you really read their post and understood what they are requesting. Don´t send the offer only with $ and days, make use of the space for a personalized message to make your offer stand out among the others.
You can not contact Buyers directly (unless a Buyer happens to have ordered from you before and you have a ‘communication history’ with them), this is not to annoy you or a shortcoming in the Fiverr system, but because Buyers would drown in messages by Sellers else, only reply to their BR with an offer. Often Buyers will get several – lots of offers, and only contact the Seller who’s offer they choose, don´t be disappointed, if you get no reply, it just means another Seller was faster or their offer was a better fit for that Buyer this time. Try again.
If you write lots of offers and never get a reply/order, re-evaluate your gigs, prices, the messages you send the Buyers in your offer to the BR, your profile, maybe it´s time to try out something different.
Read helpful forum posts on all those things - but do not send personal messages to people who wrote the posts or commented on them, asking for help, especially not through the main fiverr page inbox – most will not like that and only point you back to the forum anyway, or even report you for spamming. If you want to ask for help, ask publicly on the forum, so everyone can profit from any help given. Good forum categories to ask are ‘Improve My Gig’ or ‘Conversations’ or maybe ‘New User Introductions’.
Unlike when you usually send a custom offer to a Buyer, you can not set an expiry date for an offer you send in BR, so make sure you won´t be negatively surprised, if a Buyer takes you up on your offer when you´ve already forgotten about it and have x orders and no time.
You can see all offers you sent in BR in Selling > Buyer Requests > Sent Offers, but unlike with offers you sent to someone via inbox, you will see that there is no ‘Withdraw Custom Offer’-button to click for those.
A useful Fiverr-link regarding BR from Seller’s side:
And to see how things look from Buyer’s side:
Good luck with sending your custom offers to the requests posted by Buyers in Buyer Requests, and don´t give up too soon, as a freelancer you need some patience and persistence.
ETA (edited to add):
Now that you know what not to do with BR, also have a look at this excellent post regarding Buyer Requests by @ayafalls with more tips on how to actually get a Buyer to accept your offer: