Never trust these wallet companies such as PayTm and MobiKwik until there are stricter RBI regulations and an independent watchdog/committee monitoring these companies.
At present they behave like amateur kids with zero customer support and very poor service.
How can PayTM not have a contact number? You have to e-mail them and wait for a response. And they pretend to be replacements for banks.
Is this any way for a financial company to operate? Tell me which bank does not have a customer care phone number?

MobiKwik, I will tell you is even more sad, their customer service reads from a paper "we will resolve your concerns in 48 hours" and it takes 15 days for them to respond back after that.