Hi Johnny,
When dealing with any contract it is vital that both parties fully understand the scope of the contract between the two parties, you should have read and understood all the implications.
Of course, you now realise this and face a major problem!
You now have to find a solution!
My first thought would be to ascertain who won the battle of the forms, did you supply your client with a specification and a service contract, or did they supply them to you?
The last dated contract wins! (hope its you!!!!!!)
Whichever contract applies, is there no provision to raise prices due to material price increases?
Are you actually losing money? You probably are on the head office job, but taken together with the other sites, can you not absorb the extra costs, this will only work if you signed up for a year, struggle on with a little profit for the year, keep very good records of your costs, and punch them in at re-newal time.
Supply them with the cheapest consumables possible, haggle with your jan san supplier on trade discount taking into account your likely usage and buy in bulk if possible to pay as little as possible, thus helping to minimise the costs.
Be honest with the guy, explain your mistake and offer to supply whatever they need on a cost only basis, again haggle with your supplier and buy in bulk to minimise your clients increased costs.
If you have typed the relevant paragraph word for word, I would take the contract to a specialist commercial lawyer, as that paragraph seems to be extremely open ended, and may in fact be unlawful.
If you did indeed supply the spec and the contract, somewhere within that document, the magic E.O.E (errors and ommisions excepted) should be there.
Hope the above helps, but its now late, so excuse spelling
Regards,
Rob