Im unable to download from the app store due to my payment method card has been blocked as i lost it and am awaiting new card is there a way to still download apps

Only if you see a None option in the payment methods for your account. Without a None option, you must have a functioning payment method to actively use the account.

ASC - Late 2012 Mac mini, macOS 10.13.6;  Watch, 38 mm AL, watchOS 4.3.2; iPad Air 2 & iPhone 8+, iOS 11.4.1; TV 4th Gen, tvOS 10.4.1;  Airport Express

By only setting payment method to none in sett