If I use Bitcoin there is a likelihood that I wish to remain private, compelling users to divulge their bank details for a refund when an order is cancelled doesn't quite sit right with me.
A part-time worker who might be a registered sex offender is going to deliver food to your doorstep in the middle of the night, what privacy are we talking about?

. Anyhow, why is every good thing coming along with something bad?
The delivery service is using Bitpay as its Bitcoin payment provider.
Well, that ruined my appetite.
It also has a good purpose why they included it since they saw a decline in using cash for payment.
What decline in cash payment? They never accepted cash, just CC and Paypal.
I think Just Eat's decision was due to the virus, COVID19, which brought down a lot of establishments to close. Now, people prefer ordering online and to attract more clients, they have added Bitcoin as a method of payment. This is just my theory though but I am sure there is a high chance this has been brought due to the virus.
In France restaurants have reopened since June, it's 3 months from then, rather than an increase in online orders we can talk about a decrease in them, I, for example, got bored with food delivery in early May, seriously, not going to pay twice as much as its worth, wait one hour for it and have it delivered like rationing in plastic boxes, I'm done with it, I'd rather spend one hour in the kitchen and eat stuff I burned half than ordering again.
Before the crisis I was eating pizza probably once a week, during the lockdown 3-4 times, now it's 3 months since I eat one and I'm not eager to touch it again.