Olx India — Didn't provide service after purchasing OLX package

My OLX account is registered with the below details:
Phone Number: [protected]
Email Address: [protected]@gmail.com

I purchased an advertise package for my ad for ₹3499. I then purchased another advertise package for the same ad for ₹1999. After purchasing the 2nd package, the first package was deactivated.

I then contacted to their customer support and they told there can be only 1 active package on an ad at a time.

So then, why didn't they mention the same thing on the purchase page? How does a user know that they will not get the service even after making the purchase? You can check the OLX Packages purchase page and there is no mention that multiple services can't be used on the same ad.

Now that they have activated the 2nd service, my first service worth ₹3499 is of no use. Either provide me the refund for the same or else let me use both the services.