Poor response to queries and very rude

Enquired about driving lessons & was sent quote on 23 June. Followed up on 20th Aug when I was ready to pay for lessons. No reply. Sent request on 24th Aug at 08:02. Called to enquire how long the ten lesson package was valid for & was told it does not expire. Sent another e-mail at 8:22 requesting an invoice. No response so sent a further e-mail at 17:38 - \Oh my goodness. Do you need business or not? I get no response to my e-mails