STEP 1: First of all, you need to create an user account.
Select Register and fill-up the user creation form as below
Please enter your phone number and an OTP will send to the number. After that bellow screen will appear.
After successfully creation of user account you can login as below
After successfully login you will see below page
STEP 2: Please select the option 1 "Order New Services" for buy a Hosting
Select the option 2 "Register a New Domain" for buy a Domain
STEP 3: Payment Procedure
Select your product (domain & hosting) and click Checkout
Now, click Complete Order
Payment Gateway page will appear and here is several option for payment. Please choose your payment method (bKash, Rocket, Nagad etc.)
If your Transaction method was bKash, then go to Inbox section inside bKash and find the Transaction ID.
After successfully completion of your payment, you will get an invoice for your product. See below screen