Swiggy — It is about changing the number of account on swiggy and lost the access of account

Address: Swiggy Mehsana Gujarat

Website: www swiggy. com

My brother's account on swiggy has changed the phone number by someone on date 6 Nov around 9 pm, we know this incidence via text message from app, about changing the number.
Someone who tried to hack, the hackers number is [protected]
At that time we are in tension about phone safety and privacy. Lost our access on account. If anything order or something that's not by us..