Hi
Cadiac Sen
Thanks for posting your question here,
if you want to have additional resource or quota, I suggest you to switch your subscription from free trial to pay as you go, where you only pay for the resources you consume, as it is consumption based model,
to know more about the pay as you go subscription kindly find the documentation link below.
https://azure.microsoft.com/en-us/pricing/#product-pricing
Kindly accept the answer if this helps, thanks much.