irritation

for the record - the phone is again (for the 3rd time in 2 weeks) back in repair (where they dont seem to do anything - they replaced the internal workings the first time, second time -nothing found but software upgraded (why was the software not upgraded the 2nd time) - 3rd time - no report yet but still cannot receive incoming calls at times. <br> <br> and no reponse other than the automated response to the first complaint