Blockchain Receive API stopped to monitor some addresses

[hellobtcon]

Hello! I have a headache for a week
I have API that seems to work great.
But some transactions do not get callback notifications and some do.
For example. User1 generates new address, sends BTC and callback works good. But In a week user1 decides to send BTC again -> sends to the same address and callback url doesn't receive any callback notifications. I see the transaction being confirmed many times but 0 callback notifications received. And any other transactions to the same address will not receive any callback notifications (if it didn't receive for the last one). And if User2 decides to send btc -> he/she generates new address and everything works well. User2 may even send more btc later and callback will be received as well. I do not know what's the problem... I thought maybe it depends on time, how much days ago address has been generated but seems like even some old addresses work well ( send callback notification).
Also I do not see some transactions in blockchain.info dashboard.
And I think some transactions that did not received callback notifications may not be credited to my BTC balance. Don't know why.
I have script that uses another xPub if the last one reaches gap limit. So the gap limit is not a problem any more. Totally 5 xPub keys are in use.

PLEASE HELP!

[jackg]

If you coded this, contact blockchain.info. if not, try contacting the person who wrote it for you and see if they have a solution. I think there's too little information for us to go off here unless another user is accustomed to the blockchain API.

[hellobtcon]

If you coded this, contact blockchain.info. if not, try contacting the person who wrote it for you and see if they have a solution. I think there's too little information for us to go off here unless another user is accustomed to the blockchain API.

How to contact them? I did not find any email or ticket support. Only FAQ

[cissrawk]

How to contact them? I did not find any email or ticket support. Only FAQ

try this https://support.blockchain.com/hc/en-us/requests/new because when i got problem, i always use it for contact their support. I try to check my discussion on email and found this support@blockchain.zendesk.com on their information. Hope it will help you.