Is this a scam. I have ordered 4 gigs. Nothing has been done…! other than the payments you received.
It is against the rules to call out other users in the forum. If you have a problem with a certain seller, contact Customer Support and they will assist you.
the seller continues to ignore with no communication
Has the deadline been reached? If the order is 24 hours (or more) past the deadline and the seller has not made any attempt to communicate with you, your best option may be to just cancel the order to get a refund.
If the order is not past the deadline yet then I suggest just being patient.