Careful consideration when opening an account

wanted to open a bank account and discovery bank took me through the whole process and the only option they gave me was to open a savings account. when i queried why my vitality miles did not transfer across i was told that i have to open another account ie transaction account or credit card. BEWARE - seems that all the top ups to have your miles moved across come after you've opened the initial account. i definitely don't want another account with discovery bank.