AJ fast electricians and plumbing. Be cautious when using them

Really bad experience. Poor workmanship. Advised of a price including 5 year guarantee. After job completed asked for cash or price goes up due to VAT. Once we paid via card, the asked for an additional 500 to remove the rubble. We requested an invoice My father who is 96 was dealing with all this. Requested invoice was told servers down. So thus far no invoice. Would not recommend at all.