Zomato — your executive denying his own words

I ordered from zomato and made an online payment and then restaurant called me and said i has to give 40 rs. Extra delivery charge and asked me to even confirm it with zomato as well. When i told zomato about it they told that you don't had to pay anything to the delivery guy they called and when i put the zomato guy on conference with delivery guy zomato guy yess sorry thier was a glitch in sytem thats why this has happened and can you please pay delivery charges to the delivery guy. I am attaching pictures containing my order id as well as screenshot of chats.