Qiwi for online stores

Of course, this service is only admirable.

We are registered in Qiwi as an online store. For access to your personal account there is an address https://ishop.qiwi.ru
For all payments on our website, the qiwi API is used, which is located at this address https://ishop.qiwi.ru/xml

Today, all this has stopped working (nothing opens, although it pings).
The support service said that they do not advise on ishop.qiwi.ru, where they don’t know where to call and that we can write a letter to support@mobw.ru and within 5 working days we have to give an answer.
')
Like this. Now if someone pays for it, we will not find out. I'm not talking about withdrawing money.

UPD
kosenka still phoned to those support ishop.qiwi.ru, there he was told that

They know about the problem, but they can do nothing, because the people who are directly responsible for ishop.qiwi.ru are not available now and will be only on Monday ...

Comments are superfluous.
UPD 2.
(03.20.09 between 23 and 24 hours) Hooray, earned.