If the cash register communicates with CRK via Ethernet or WiFi, is it possible to use the same connection to communicate with the cash register from the computer (sales system)? Does the taxpayer have to program all the rates indicated in the Regulation? Is it possible to program VAT rates "the old way" in cash registers after May 1? Why does the Http name resolution error appear in the cash register/printer? Who is entitled to the deduction for the purchase of a cash register?