Hello
We implemented blockchain.info api when it was one of the best known wallet and api. We did not face any issues with it for an year and half but we started facing issues from July 2015.
https://www.unocoin.com/post/394However the issue sorted out by blockchain.info after about 4-5 days and things were back to normal. It is not that we do not know how to implement it.
It is not that there is no one at customer care to pick up your call but most of the times there will be an on going call for the representatives and hence they wont be able to pick yours up. You would just the ringing sound and voice message from our system to keep you occupied instead of an engage sound.
However we decided to work on an alternative and we have worked through for the rest of that month and have implemented api from bitgo. Bitgo as of now is considered industry standard (exchanges like bitstamp uses them for hot wallet).
Yesterday we have issued new wallet address for all our users. Announcement here
https://www.unocoin.com/post/410From now on, please use your new bitcoin address to accept deposits to your wallet. We have been using this on batches of customers since the start of this week and it has been working awesome.
Regarding the issue you are facing now, I am not able to find any ticket which resembles ani444. The mechanism that we have been using has been explained in our FAQ and if we face any issue with our vendor, then we work to get it sorted out. Since yesterday the issue with blockchain.info has again turned up and forwarding is getting delayed. We have written about this to them and our ticket has got escalated and is looked into. It is slowly getting cleared and hope yours will clear soon as well. As we have made it as an automated process, we wont be able to interfere to do anything here. But just know that if you do not use your old bitcoin address again, this will be the last time you will be facing this issue.