"29 In this respect, taking into account, first, that it follows from Article 2(1) of the Sixth Directive that every supply of a service must normally be regarded as distinct and independent and, second, that a supply which comprises a single service from an economic point of view should not be artificially split, so as not to distort the functioning of the VAT system, the essential features of the transaction must be ascertained in order to determine whether the taxable person is supplying the customer, being a typical consumer, with several distinct principal services or with a single service. 30 There is a single supply in particular in cases where one or more elements are to be regarded as constituting the principal service, whilst one or more elements are to be regarded, by contrast, as ancillary services which share the tax treatment of the principal service. A service must be regarded as ancillary to a principal service if it does not constitute for customers an aim in itself, but a means of better enjoying the principal service supplied (Joined Cases C-308/96 and C-94/97 Commissioners of Customs and Excise v Madgett and Baldwin[1998] ECR I-6229 , paragraph 24). 31 In those circumstances, the fact that a single price is charged is not decisive. Admittedly, if the service provided to customers consists of several elements for a single price, the single price may suggest that there is a single service. However, notwithstanding the single price, if circumstances such as those described in paragraphs 7 to 10 above indicated that the customers intended to purchase two distinct services, namely an insurance supply and a card registration service, then it would be necessary to identify the part of the single price which related to the insurance supply, which would remain exempt in any event."