Step::1 Login to your DomainResell panel.
Step::2 Go to Account Balance panel and click on Recharge via UPI only tab.
Step::3 After this you will see a message “We do not allow depositing funds in advance automatically. Kindly use manual UPI balance credit method. Please contact us“
*So in order to add funds manually you need to contact Redserverhost.
That's It !You can go through the video tutorial to get in-detailed procedure. You may read the blog as well.