Late/No del should warrant a breach of contract

I have touchscreen equipment and contracted to you. It was quick to get my signature on your contract and my account debited every month however when I call in desperation because the equipment is not working, I am guided telephonically to sort out the problem. Eventually we could not sort out this problem yesterday afternoon and I was told that a technician would come through first thing this morning. It is now 15H05 and my business is still running on a manual basis which is SOOO ANNNOYING!!!! It takes hours to cash up!!! <br> <br> When I am billed at the end of the month will you be deducting the days/time of non functional units?<br> <br> Service like this should legally allow for non conformance and cancellation of my contract with GAAP.<br> <br>