There are three main layers of the skin. 1  Epidermis is the top layer of the skin, the part of the skin you see. 2  Dermis is the second layer of skin. 3  Subcutaneous fat is the bottom layer.
0844 numbers are almost never included in any 'free' minutes or talktime included in a phone package. From a BT landline, an 0844 number will typically cost up to a maximum of 5p per minute to call.
PPP cover 0871, 0872, 0873 & 09 numbers, not any 084 number at all infact. As 0844 is only charged to the caller at up to 4.26 pence per minute from a BT landline it has been deemed to be not that expensive so not 'premium rate'.