OFFICIAL Problems with Buying/Selling Trading

[Walkies]

Hi
I recently (two or three days ago) purchased a third big sea coast, mainly because I never have enough squid or yellowtail.
I have yellowtail as the fish I would like to buy at my trading warehouse. I can only buy two, but now I have three big sea coasts, it should have gone up to three yellowtail. I have reloaded the game, restarted my computer, pretended I wanted to buy a different fish, but no, still can only buy two yellowtail. Or two squid. Please help. Thank you.