[Resolved]  Vivo Mobile India — not getting bill for the service done

Address:

Uppal..phone no.9908208708, Hyderabad, Telangana

Sir,
My vivo v15pro given for reapir from where i bought it.. They repaired and charged rs7100/- saying there is no warranty for my handset but not issuing bill for the 7100/-amount... So had doubt wether they did it under warranty or not.. If not why they are not issuing bill... So i have doubt that are they cheating me as it done under non warranty.. Iam here enclosing the bill of my purchase...
Thank you...