Dotzot — received fake product and when delivering extra charges other than delivery charge

I have ordered combo of samsung powerbank and fitbit watch for rs 890 and of delivery charge total 1049 but when courier officer called for delivery, he tells total amount is 1249. And 200 rs extra when i brought home and kept for charge it is full of charge. Then i connected my mobile for charge it will become empty 2 days went then i opened that power bank it was filled by full of gum inside. Watch is of 80 rs they cheated me.
I want my money refunded