Great Eastern Appliances — Non delivery of refrigerator

Address:

Howrah, West Bengal, 711102

Sir/madam,
I have bought a whirlpool 230 imfresh prm-5s/215 ltr refrigerator from dalhousie branch on 10th april, 2016 with a delivery date of 11th april, 2016. On the time of buying salesperson told that there would be a delaying of 4 to 5 days due to a problem with warehouse. We agreed on that one. So accordingly my product should be delivered within 14th to 16th april, 2016. But till today 22nd april, 2016 my product is not being delivered.
I have contacted the salesperson several times. At first she wants two days to deliver my product. But nothing happened. Today she is not picking up the phone.
My invoice no is hbs/sa/1617/00903.
I have paid my hard earned money in advanced. But i did not get my product. Is this a joke?
Either delver me my product within two days or refund me my money back with interest till date.