We are a small business operating in Queensland and our office lease provider has for a continuous period incorrectly invoiced for items that we are not liable for. We have repeatedly instructed them in writing to correct the invoices and reinstate a credit to account, which has not been processed. This goes back now over 12 months. Can this be deemed as a breach of contract conditions by the Provider under contract law? And if so, will it hold up if we provide notice for termination of the commercial lease on these grounds? This is a business to business contract so therefore not covered by Australian Consumer Law.