Congratulations on your new pinguicula! I can't offer any identification advice without a photograph, even then it is rather difficult due to the nature of pinguicula... until they have settled in a new environment and start active growth it can be very difficult to identify them - even then the easiest way to identify a ping is by its flowers.
I've noticed in the UK that stores often stock P. Moranensis so that would be my first guess as to its species - but again without photos I can't really say. Regardless it will likely be a mexican pinguicula which is the easiest variety to keep.
An easy and fast draining mix is preferable for mexican pinguicula as root rot is a common problem; I keep mine in a peat/perlite/sand mix. I water my pings once a week using the tray method but I also keep mine in seed trays that stack perfectly into their water tray so there is very little evaporation. You may have to water your ping once every three days but try not to keep the soil wet; mine are kept lightly moist.
During the colder months of the year (October through January) mexican pinguicula require a
dry dormancy. This can be induced by a reduction in photoperiod, watering, a slight temperature drop (not essential but it will help) and lack of prey. You will know your plant is or is going dormant as it will stop producing carnivorous leaves and will grow thin, non-sticky leaves that stack onto eachother. Keep your plants lightly damp during this time. During the winter I will take photos of my dormant plants and add them to my website (see my signature for the site, which contains more info regarding pinguicula care). You can reverse this process to bring your pinguciula out of dormancy. I give mine the same dormancy period as my venus fly traps, although the triggers are different.
Give your ping as much light as physically possible and you may see a remarkable colour change in the plant; some turn pink, some turn purple, others red. It is perfectly normal for your pinguicula's leaves to pale in bright light but if they become transparent it means they are dying. Yellowing pinguicula leaves are also not normal and not a healthy sign.
Off the top of my head that's all I can type right now
. Best of luck!