Bluember.in - Bluember.in — no refund on cancellation, no customer support, variable products pricing.

I bought their integration-plugin plan on **th jun ,from their sales rep. Meghana Vasudev, worth INR **, ***, paid to argentsol@icici
In which they would help setup plugin, import products list on my e-commerce website as per my requirements.

Issue#*: Inefficient customer support. Sleazy and late responses.
Before, i brought the plan, i got pre-sales calls every-day to purchase the plan. After i purchased the plan, the integration work started after * days, that too after nudging again and again on email and not on phone as the sales lady, doesn't pick the phone. Why now? Sales is done, right?
I even asked for another number of developer or some manager to understand and discuss more details about various queries i had. But didn't got any number.

Issue #*: The import plugin doesn't work.
The import plugin was installed but it doesn't work for my website and the process stops after some-time. I have fixed memory and other issues for the same.
I have asked them of better plugin or something that can be faster as it wasn't working as per my requirements. But didn't got a answer yet.

Issue#*: Variable pricing
Prices are changed every week. This wasn't made aware to me before i purchased the plugin-plan.

Because of all the above issues, I told them to cancel the plan and refund my money. Now, their billing team is saying that there is no refund policy and cancellations in Terms and conditions.

I haven't even used the product as it is not working out for me. I am on on-boarding stage and decide to cancel my account but these people have come up with no refund cancellation policy and its not working as per my expectations and as per promises done in pre-sales calls.