my apologies for the delay in reverting to you. I have been out on appointments for much of the late afternoon and early evening.
I'm grateful for the above information.
As this is a business to business transaction, statutory legislation has limited input and the terms of the agreement are more readily enforced by the courts in their own right without substantive interference from legislation.
providing you can clearly demonstrate by reference to correspondence and documentation that the variation was both notified to the customer business and that on the balance of probability, the customer agreed to the condition variation, the condition will be enforceable and incorporated within the agreement subject as follows.
Was the above is true, you are under a common law duty to mitigate your losses. In other words, you cannot make a profit from their breach of contract but rather the law provides that you are entitled to be put in the position you would have been in had they not breached the contract.
What this means in practical terms is that where possible, you should attempt to resell the service to a third party upon agreement or request to do so by your original customer. where it is not possible to resell at the same price, you may consider reducing the cost, again in agreement with the original customer in order to achieve a resale. Any amount you are able to obtain by reselling the service should be deducted from the balance owed to you by the customer. You are entitled to deduct reasonable administrative expenses you incur in reselling the same.
Reselling is not necessarily the only option to mitigate costs. If you are able to mitigate costs in another way, such as by cancelling certain services which you no longer need as a result of the customer's cancellation, if this is more expedient, this can be an alternative approach.
Providing you can demonstrate that you have mitigated your losses, subject as above, you are entitled to claim the amounts due to you under the contract in accordance with the terms agreed.
There anything above I can clarify for you?