Sales Calls to UK, Spain and Portugal

We need a person to make calls to companies in the UK/Spain/Portugal for our client. Whilst Spanish and Portuguese are not essential, a good standard of English is important. The calls will be following up an email sent on behalf of our client and the call is to confirm they received it and if they are interested in our clients products. Duration probably 2-3 weeks part-time, 2-4hrs per week day. Would suit a freelancer already doing calls that wants to increase their daily hours.