Join Date: Aug 2011
Location: Barcelona, London, on a plane
Programs: IB+ Gold, TK E+, Hyatt Globalist, Marriott LTP, IHG Diamond
Posts: 14,182
AFAIK there is no number for Spain that works via Skype. I occasionally had success by looking for "Iberia Service Centres" for South American countries that actually provided a +34 91 xxxxxxx number to dial - but lately I've been getting "we've changed our number" messages.
Best bet is the UK number, but you will bounce around and end up in Madrid anyhow.