I bought TABSHOP via Google play store since few days ago, am yet to receive invoice or any acknowledgement neither have I received unblocking code from you and my credit card has already been charged.. Please respond. Secondly my Lenovo tablet isn’t working with the zxing barcode scanner. It worked with scan life scanner out of about 15 I downloaded and tested. How can I make scan life  a default scanner to TABSHOP. Thanks.