HELP!!! Who to contact for Yobit's RDD Wallet source code

I received a message from Yobit about the RDD Wallet:

Dear User!

Support answer:

Deposit\Withdrawal coin will be available after you upgrade the source code of the wallet. Unfortunately the developers are in no hurry to send you updates - therefore, in order to avoid the loss of users, the network is not available. If you have updated the source code of the coin, send us (https://yobit.net/en/maintenance_request/ Free)and we will promptly correct the problem on the coin. Thank you for contacted the support.

Please answer in tickets only, don’t send any answers to email! Tickets: https://yobit.net/en/support/

Date: 13.02.2018 20:19

Sincerely yours, Team of Yobit.Net

which source? Cause I send some to my yobit wallet but never appeared there?