There are differences between Scotland and England & Wales when it comes to the provision of insulin pumps (CSII - Continuous Subcutaneous Insulin Infusion), my friend, and even differences in the area of Scotland that you come from.
The NHS DOES provide pumps. I've been using one since December 1998. (It's not just the cost of the pump that needs to be taken into consideration, my friend. The ongoing expense of 'set' changes can prove rather costly too. The 'set' changes are the cannula, tubing, and reservoirs, which need to be changed every 3 or 4 days.)
The following web page offers some guidance on your chances of getting a pump dependent on where in Scotland it is that you live.
Although I don't have copies of the guidelines for the use of pump technology in Scotland, you MAY find that some of the information offered by NICE (National Institute for Health and Clinical Excellence) to worth reading. It MAY, at least, give you some idea of what you need to do to 'prove' to your diabetologis/endocrinologist that pump technology would aid you in controlling your diabetes. You will, of course, need to show your doctor that you'd be willing to take a more active role in your diabetes care.