No internet connection due to outdated password

On Monday the 20th when I got home from work I had tried connecting to my Rain 5G router when I saw that I was disconnected, which rarely ever happens upon selecting from my phone Wi-Fi setting the enter password pop-up notification opened I had than tried typing in the password that I’ve always been using which came with my Oppo Tower however it said incorrect password, I tried numerous times and I opted to restarting my router to see if perhaps the issue would be fixed by doing so, however it was still the same. Early Tuesday morning I decided to call the Rain customer support line for assistance regarding this issue and I was advised to reset my password using the IP address on my Tower with no luck whatsoever I tried yet that failed as well I contacted Rain again informing them that I’ve followed what I was told step by step what I was advised but still no change as I cannot seem to access the IP address page to change my password since the page doesn’t even load after typing it on my url on both my device and laptop I even went as far as trying it out on my work PC still with no luck. Wednesday being day 2 of no internet connection I called Rain again and I had kindly asked if it would be possible if they may help me reset my outdated password for my router from their end since I’ve exhausted all options on my side with no luck with accessing the IP address page and a lady by Nomvuselelo (I think) told me she’ll have a word with her supervisor and get back to me about that waited hours for her to get back to me and she didn’t. I called in at Rain again explaining the same issue for the 100th time with one of their customer support agent’s sharing to him the frustration and how upsetting it is for me not having access to internet connection that I had paid without give them any hassles upon debt date asking him if is it fair that I receive such poor customer service from them as they their loyal customer. It now has been 4 days in counting and still my issue has not been fixed before the end of this weekend I would like for Rain to gladly cancel my subscription with them because they are surely not doing me any favour here. I’ve already made means of contacting Vumatel and I have been given a much better offer. Than to stick with Rain and their ****tiest service