It was a pleasure to speak to you.
Send them the following email:
Further to my previous emails, I’m disappointed that I’ve had neither response no payment in respect of the outstanding sum of £XXX, which was due at the end of March 2017.
I’m also disappointed that you have not honoured the agreement to pay me in respect of holidays and bank holidays and I calculate that in that respect, the sum of £YYY is due.
The reason for this final email is to put you on notice that unless full payment in respect of the above is received by no later than 5 PM on Friday, 28 July 2017 I will issue Small Claims Court proceedings without further notice.
If I do issue Small Claims Court proceedings it will also include a claim for statutory interest at 8% per annum under the Late Payment of Commercial Debts (Interest) Act 1998 and the statutory fixed sum of £70 under the Late Payment of Commercial Debts Regulations.
Any judgement received against you will be enforced to the maximum extent permitted by law.
If you ignore this email, the next correspondence will be court proceedings issued directly by the court.
I look forward to hearing from you.
Here is a link which explains the late payment legislation https://www.gov.uk/late-commercial-payments-interest-debt-recovery
and here is the link to the Small Claims Court www.moneyclaim.gov.uk where you issue the small claims court proceedings