Coinbase gave me free coins?

This is an automated archive.

The original was posted on /r/cryptocurrency by /u/0Adiemus0 on 2023-07-18 01:51:49+00:00.

Hello all, so about two years ago, I bought a 38 coins worth about $1,100 when the coin was at about $30. I transferred the coins over to Coinbase pro, and then when I heard Coinbase pro was shutting down, I decided to transfer them back to Coinbase where the coins were now at a value of about $5.

And now, this is just where I noticed something off. It transferred my 38 coins just fine, with the value of the coins being about $200 now. But on top of that, about 5 minutes after the transfer, I get an extra 136 coins out of nowhere.

What are y'alls thoughts on this situation? Do I contact Coinbase or have a "boating accident"?