You can contact the preferred suppliers for Apple products, you will need to email your spec to one of the suppliers who will then send you a quote; you should then create a UFS purchase order VAT exempt and email it to them. If you need any more info, please do get in touch with ITsupport or Stores.
The preferred suppliers:
XMA - Paula Hickey Paula.Hickey@xma.co.uk
Academia - Vishal Mistry firstname.lastname@example.org
Insight - John.Southwood@Insight.com http://uk.insight.com
Stone Computers - updated 12 January 2017
Unfortunately, due to the sheer volume of orders placed across the HE Sector with Stone, they have been unable to fulfil sales to their desired performance levels. As a result, Stone have communicated to me that they will be unable to take any more orders for the foreseeable future.
Please do not attempt to purchase Apple goods from Stone under the Apple Agreement either via the marketplace or directly. The three remaining resellers, Academia, XMA and Insight are operating without any problems and should be contacted to obtain quotes, to determine lead times and to place orders.
Once the backlog with Stone subsides, they will still be part of the Apple Agreement but will not be the first choice supplier.