Ok -I can advise what to do if it was a UK company, but it may be you have to sue there in South Africa
You need to write and set out your losses and request payment for loss within 14 days or say you will go to Court within 14 days. You should make sure you send this signed delivery and keep a copy.
If they do not pay you then you can issue proceedings in the County Court. You can either do this online at: www.moneyclaim.gov.uk or by completing form N1 https://www.gov.uk/government/publications/form-n1-claim-form-cpr-part-7 and take it to your local County Court.
The Court will then issue a claim which a copy will be sent to the Defendant who will have a limited time to defend it, if not you can enter Judgment and enforce.
If the claim is for £10,000 or less it will be a small claim so you will not need legal representation. Over this value, you would need representation for trial.
If it is more than £10k you would need a public access Barrister to draft pleadings and represent you in Court.
You can find one at:
You can probably only claim for loss of profit - as you wont have the expenses of working. So these sums would need to be deducted.
Can I clarify anything for you about this today, please?
If not, I would appreciate a 5-star rating for my answer. If you need anything further I am available for a follow up at no extra cost.