Mondo has no communication skills

Again I am struggling to get a response from Mondo. Numerous emails and calls don't seem to get through to them. Surprising that a company dealing with calling all day struggles to do so when they have made a mistake. Seems from their lack of communication that they would rather try frustrate me till I drop the case. I have told them that there is poor cellular signal so their response at best was to call 1 time only which I didn't receive due to signal.(call only came after my 1st review) I think it's time that reviews should have negative stars so the real rating could be calculated.