Get hosted page url

Hi,

I am currently trying to retrieve the hosted page but I get html when I submit the form. How can I get the url of this page?
I am using Postman for my tests, here is the call made:

POST /HPPDP/index.php HTTP/1.1
User-Agent: PostmanRuntime/7.26.8
Accept: */*
Cache-Control: no-cache
Postman-Token: 86e21cb5-2b02-40b2-bb51-13e54ec8fe41
Host: esqa.moneris.com
Accept-Encoding: gzip, deflate, br
Connection: keep-alive
Content-Type: application/x-www-form-urlencoded
Content-Length: 61
Cookie: TS019df888=015d06d254735111610a4d222492be9d78992467ca65d96cef1ea0d03535a80dab823ec63a0b68fc59f86b64274d20647418b4ed3a

hpp_key=[myKey]&ps_store_id=[storeId]&charge_total=1.00