I started a new contract 5 weeks ago, and the recruitment agency provided a contract with weekly payment terms. It was signed by both parties. I've just received an email on Friday last week from the agency, to say "we are changing all contractors over to monthly invoicing, effective immediately."
Can they do this, when we have a signed contract, stating weekly payments, and they provided a payment schedule that shows all payments are weekly on a Friday for the duration of the contract (provided at contract signing)?
This sudden and unexpected change will cause some issues for me, so I don't want to agree to it.
Is it allowed?