It’s been more than 3 days, and the funds are still not reflecting in my account.

New merchant accounts are subject to a 7-day cool-down period. This is a standard anti-fraud measure enforced by Standard Bank. Merchants are able to transact during this period, but the outstanding amount for all transactions completed during the cool-down period will only be settled after the 7 days have elapsed. You should start receiving automatic daily deposits once this cool-down period is over every business day.