Food Panda — foodpanda taking money and not refunding after the given time

Address:

Kolkata, West Bengal, 700124

On 25th sep i ordered on foodpanda and it's been 20 days and i still did not get my refund as my order got cancelled and in the app it says that i will get my money back in between three to four days well i contact them they told me it will take 7 to 10 days and when i had a talk with them last time they told me it will take another few days and it's been 20 days which means it has exceeded all the amount of time that they have asked me to give them to refund my money and whenever i ask them about my refund that tell me it will take few more days or we are working on it and that too after waiting like 20-25 minutes and then don't even take care of their customers as the customer service help desk are least bothered about what the customer has to say. Idea 4 launch a complaint on foodpanda
Below is my order date time and code as well
Sep 25 2018 at 11:49 amorder code: u4sr-c1b3