ICBC bank account and Chinese SIM card

I had ICBC bank account and Chinese SIM card from China unicom last time when I was in China in 2019. I am traveling soon to China again and I was wondering is it possible that my bank account and Chinese phone number are still working. Does anyone know if bank will close the account if it wasn't used for more than 3 years? Also will my old phone number still be valid? I had Alipay account attached to the old Chinese phone number, so I am wondering if I should open a new account with new phone number or try to reopen my old account ( although I don't remember the password or anything)? Please give suggestions, thanks!