You absolutely don’t understand what spamming is. The conversation was initiated by the buyer concerning my business. We had a conversation and according to the first post, they required sometime to get things together.
There is nothing wrong in sending a simple message after about some days saying:
Concerning our last conversation, were you able to get bla bla bla.
If there is anything I can help with, please let me know.
I do not see how any sane business person would consider this spamming. If after sending this message and you do not get a reply, Move on. If you keep sending this message repeatedly without any response then sure you are crossing the limit and can now be considered a spammer.