Flipkart — I am complaining about flipkart account and pay later

Flipkart is continuosly harrassing me by sending sms and emails for the non payment of my flipkart pay later bill of rs 367(60rs of penalty charge for non payment included) whereas i tried to open my account for last 1 month which had been blocked by flipkart. Without opening the acount how can i pay?? I have contacted flipkart on their helpline no. Also send them various emails regarding it. But haven't got any kind of reply from their side! I have purchased so many things from flipkart. Now for 367rs how can they harass the customers like this way?? Now flipkart is telling that they will go legal for 367rs! Is it a joke?? They blocked my account they aren't assisting me so how can i pay the amount without opening my id? Actual due amount was only 307rs but now they keep adding penalty charges.. Why should I pay the penalty charge of rs 60 as the mistake is happened from you side not mine. Flipkart should provide an alternate option to make payments. Flipkart can behave like a dumb! I want proper solution.

Jothi Nadar