PGCEi application

I applied for international PGCE at Warwick (online in my country) 6 weeks ago. My interview was successful. The course will start Aug21. (Two weeks left)
They did not send me an offer yet.

I email them every 2 weeks and they say we are still processing your application.

Is this delay normal in British universities? I am worried that my application will be rejected

I would say yes, they do take a while to get back to you, even with UK nationals it is sometimes a while before hearing from them. Currently the UK schools and Universities are on summer holidays (break) and this could also be causing the delay. Do you have the phone number to call them and check up on the progress?