On 29th mid-night I rushed to Safest way super market on Shk. Zayed road, from Jebel Ali to buy some urgent grocery, including milk for my kid and other necessary items. I tried to use my debit card, but the transaction got declined thrice. Thinking that might be a problem with super market machine, I tried to withdraw cash from ATM but did not succeed. I called telebanking and they informed me that my account has been debited thrice with said amount but due to network problem, the authorization code cannot be generated. I rushed to nearby NBD ATM machine but with no luck. Bank should have the option to at least give manual approval over phone.With embarrassment I had to leave the super market empty hand.Most pathetic service by reputed bank.