Have you tried clearing your browser cache and cookies? When I get redirects like that I've also found it useful to reset the modem
1) shut down the computer
2) unplug the modem from the outlet AND also the coaxial cable from the modem
(I used to still have problems when only unplugging the modem from the outlet; a Comcast tech told me to disconnect the coaxial cable and though I was skeptical, that step solved my problem)
3) wait 10 seconds then plug them back in
4) wait 30 seconds then turn the computer on
This is a U.S. discussion board so I don't know if you have another avenue for help since you're in Gambia.
Good luck, I know it's very frustrating.