is this because of split chains? is there a solution to this problem?
I got my coins in my wallet on the exact TXID like 8 days after I sent it to my wallet. Supposed to be instant, but wasn't my case. Similar to yours I suppose.
Had filed a ticket with coinexchange when it first happened. Coinexchange took some time to respond, was sent on the same TXID. It is now safe in my wallet. I can finally see the TXID on the blockchain explorer for amsterdam coin.
I suspect there is something coinexchange is doing that is causing the problem. I hope they work with the dev to figure it out. I asked for free coin from amsterdamcoin.com to send and test my wallet, it arrived like almost instantly.