They claim to be an ipsos survey. They gave a name and asked for experiences of sales in domestic goods and financial services in the last 2 years. They asked for age education attainment, Current job and address location landline telephone no. And particularly email address to confirm details for their cold called information with guarantees to reverse any decisions to questions asked by them. String them along if you want but be careful to give no further information as they may find out more
It's a genuine company who do studies e. G. For the European Commission. However, As with Microsoft, BT, Openreach, Amazon etc there's no guarantee that fraudsters won't impersonate them and spoof their number so don't give date of birth etc.