The lender, the intermediary arm of Yorkshire Building Society, launched the limited offer last week but has extended the sale until Wednesday 30 January.
Products include a two-year fix at 2.49%, with a £95 booking fee and £400 completion fee up to 60% LTV. At the 80% LTV level a two-year fixed rate is available at 2.64% and five-year at 3.29%.
Jemma Smith, product manager at Accord Mortgages, said: “The sale has been very well received by brokers and their customers so far and we are delighted to be able to extend the deadline until 30 January.”