Huawei — huawei customer care and their services are awful

Address:

Aizawl, Mizoram, 796025

My honor v10's display was cracked and I deposit my handset on dated 13th Sept, 2018 and they told me it will be done within 7-10 days.After given dates I called back the WILLIAM MOBILE CLINIC to get know about that.But they told me it will done after next week.After that I called again and then they told we don't have the parts yet.After 3 days they called me back and told me that we got a display with blue colour when my handset colour was midnight black.So, I disagreed to repair with that parts.Then, I called to Huawei customer care and they gave me complain number (SR[protected] and told me that we will resolve your problem soon.The service centre and customer care both advised me to pay full amount before repair.Still I agreed, but when my brother visit the service centre any try to pay the amount they told him to take back the money and we will inform you when we will get the parts.Its not like they are having fun with time!
After 1 month I called them back to know my status they said you didn't make your payment that's why we hold your order to book your spare.Huh! Very funny.
And customer care told me that they cannot help me with this issue.I have to go there and then call us back and then we will take action on it.That's mean they have not the contact number of that service centre!
I brought my handset with 30 thousand and I put that device to them from last 1 month.Can't I pay 7k for that?!
Why Huawei supplied wrong parts at first time?
Why they don't send the parts fast?
Why the service centre telling me that they don't got the money?
while my brother had done the job what I mentioned earlier.
I am reporting here with some few hope.Please look into the matter.
Huawei makes me very disappointing with their services.