Help! I need a car seat base that fits!

[Tinkx]

Hi all, I am new to mumsnet, having joined due to the specific problem I have. Hello!
We bought our Pebble Travel System from Smyths Toys in March as on a special discount code - at the time we didnt realise it didn't come with the base to click the car seat into for the car. We found out this weekend when getting ready for our induction o labour whih is tomorrow!! I have back problems and could really do with the ease of having the base unit in my car although could do without it if absolutely necessary.
My problem is this, we bought it ages ago and it has since been upgraded to the beep travel system which fits the isofix base, however our seat doesn't fit that base. Does anyone know where I can get hold of the older base? The baby elegance range is based in Ireland and we just can't seem to get hold of one.
Thanks very much for your help :)

[justforinfo]

Are you on about the Maxi Cosi infant seat? And what car do you have?

[justforinfo]

Don't worry - just looked it up, it's completely different! The Maxi cosi Seat is called a pebble too! :-P