By Jesús Aguado MADRID (Reuters) – Spain’s Santander announced on Wednesday the launch Zinia, a new buy now, pay later platform it plans to roll out across its markets this year, starting in the Netherlands and Spain. The initiative is part of a wider strategy by European lenders aimed at boosting their revenues as they struggle with low interest rates while trying to fend off competition from technology firms. Buy now, pay later (BNPL) services have exploded in popularity in tandem with the acceleration in e-commerce during the pandemic. However, they have drawn scrutiny from regulators over …