Domino's Pizza — Order failed and no refund received. Refund when processed was less than order amount

Address:	Kanpur, Uttar Pradesh, 208025
Website:	dominos.co.in

Hi,

In feb this year when i was in india., i ordered dominos pizza one day but due to technical issues the order failed and even though i received the refund processing email, refund was never received. After days of followup one fineday i received the email that refund is processed but to my utter dismay it was only fraction of the amount i paid and which was debited from my account.
The order was of rs 487
Refund was only for rs.300
Time and again i have followed up with them and everytime they send me a number updation portal saying i was unreachable to contact and close the case.
I even provided my uk number, been emailing them the details and provided my emailid for communication if they cant bear the isd charge but to no avail.
I have finally decided to put the complaint here.