Self Service on pnpay/rcs not working

I just came off the phone with rcs several agents/departments. I have a pnpay store card with credit facility. However, I use the self service app on my laptop to pay my monthly bill and so on. I sent endless emails to rcs to get my self service to work again. From no response to "we sent issue to relevant department...." I know my email and i know my password (yes, 5 digits). I am put through endless verification processes via my cell phone. It does not work. How long does it take to get a simple app for customers working.(self service online). Now I have to go all the way to Longbeachmall Pick and Pay branch to call rcs from there to go through the whole circus again. I lost lots of airtime with no result. Today I was busy from morning to 2 pm. NOTHING