Corporation Bank — amount not credited after doing neft

Hi i got neft on[protected]. But amount is not credited to my account. It is showing the previous balance. And one more am not getting messages if money is credited. Even net banking is showing invalid details if i gave valid details also. If i call customer care it will be coming as busy. If i want to link account to my phonepay even that also wont work. I want to know which service will work properly in your bank. If you are not able to handle the issues why you are giving these offers. You can recruit more people if you are that much busy. Iam suffering form net banking from past 2 months. Its very annoying fro customers