Surely that gives you some leverage, they are not going to want the scaffold left up indefinitely. Once the agreed rental time elapses (is it 8 weeks?), you can hit them with the threat of additional rental charges. The more pressure you can apply the better, the thought of their bill going up and up every week might be enough to get them to address the outstanding original bill.
I wish it did..but we've had a letter from the RTM company today, demanding we ...."
remove the scaffold within 7 days failing which, it will be deemed abandoned and they will proceed to put it for sale and the proceeds donated to charity''..
Personally, I think they have a cheek to demand anything of us when they've not paid a penny !
I do realise that anyone reading this thread may be sceptical regarding the non-payment, but I really wish to assure you all that nothing has been untrue in anything I've written.
A very quick summary...
A decorating contractor contacted us to quote for scaffolding works directly to the Management company on a small block of flats to enable re-dec of the external elevations.
Our price was accepted verbally and we commenced works in good faith. ( We never ask for payment before we start works, but as soon as the scaffold is in place, we invoice for the works. ) They paid immediately by cheque. The decorators commenced their works but by the time our bank notified us that the cheque would not clear, most of their works had been completed.
The Management company telephone and apologised. They said it was an oversight in that one of the leaseholders in the flats had not deposited their portion for the contracted costs. Our bank represented the cheque but again it failed to clear. We chose to remove the scaffold boards, effectively rendering the scaffold unusable. (may have been wrong to do that, but still....)
The management company apologised yet again for the 'bouncing' cheque and re-issued another to us and asked us to replace the boards to enable the works to continue. We banked that cheque, but that one didn't clear either. In the mean time, however, the decorators replaced the boards and continued with their works till completed.
Today, we received the letter regarding removing our scaffold or they would sell it and we were also notified by the decorators that their cheque had not cleared either.
When the decorators contacted the company, they were told that the cheque had not been issued by them and it must have been a stolen cheque

It wasn't of course. Both cheques issued to us have had the same signature on them and were given to us by one of the representatives of the RTM company.
We are a
very small business, there's just me. my husband and two scaffolders that carry out the works. The money owed on this contract represents virtually an entire months income. Without it, I'm not sure how we can continue.