I looked for anyone seeking help with the same issue, and the only thing could find is a mod being condescending during any interaction asking about this issue. Until recently, completing achievements and quests within servers or the game proper, would grant the player a reward of coins. This is easily provable to be a FEATURE because each achievement has a coin amount listed next to it. I believe that there may be a man-made kink in the chain, so to speak, and would deeply appreciate a fix. Perhaps some sort of other way to earn coins? If that's not possible then at least the repair of this issue. I'm sorry if I sound rude, but this problem has gone unaddressed longer than reasonably excusable, over several months.
MCPE-65182
The coins I earn arent being added to my account, and the mods are not helping
Resolved
Invalid
0
(Unassigned)
Unconfirmed
Windows
Bedrock for the pc
1.15.0.56 Beta, 1.14.30 Hotfix
Retrieved
Hi Destiny,
Thank you for your report!
Unfortunately as Auldrick mentioned in the other report, this report is Invalid. His comment below covers it off but Minecoins have never been offered as a reward for earning achievements. If you want to elaborate on where your expectation is coming from please do and I'll do my best to work out where the confusion is coming from. To reiterate though, Minecoins have never been offered as a reward for completing achievements.
It sounds like you're expecting minecoins as a reward for earning an achievement. I'm not sure where you might have gotten that idea from, but it's incorrect. The purpose of most achievements is to prompt you to discover game mechanics you might not discover on your own. The only reward for them is bragging rights.
Ionic