Hello David,
Thank you for bringing this to our attention. I have shared your feedback with the salesperson, who will be in touch to assist you in sourcing the part now that he is aware of the difficulties you have encountered.
In the meantime, I will send you a digital copy of the operating and spare parts manual right away, and I will also arrange for a physical copy to be sent out to you.
Please do let the salesperson know if there is anything else we can assit with.