Good day again,

I got tired of waiting and called to xheli.
We agreed that deal is cancelled and they will give full refund to credit card company. I will confirm this next week from my credit card company.

Xheli has got a lot to improve if they want to keep on doing business. I won't (try) do business with them again.
If one wants to find some positive sides from this journey:they answer the phone, they respond to emails (information is not reliable on emails though).