Xiaomi India — service centre taken money without repairing my phone

Address:

122001

Plz take action against service centre located in delhi near cp... They charged me money without repairing my phone and told me your phone is dead no one will repair your phone... But one local mechanics repair my phone... And it was so simple.. He only update my phone software... So plz take action against that mi service centre.. Its located near cp jain marg road... And staff are so rude to customers