Dear Sir,
Please let us know the whether you are going to pay any interest on these loan and further I am assuming you have received this loan via bank transfer or via cheque.
There is no problem in receiving the loan, for your documentation purpose you can mail WhatsApp conversation to yourself and keep it with you.
Please feel free to revert in case of any doubts
Thanks and Regards
Abhishek Dugar
CA CS B.com