That is the view of an independent mystery shopper, which recently rated the company as the greatest in its field.
Service Science used a small team of secret consumers to use, test and evaluate nine leading mobile phone recycling firms.
The examinations were carried out between July and August of this year and Mazuma came out on top for overall performance, service quality and speed.
Indeed, those who recycle with Mazuma can typically expect a cash payment for their device within three days, whereas with six rival organisations this tends to take between nine and 15 days.
"Increasingly we find that consumers are placing a premium on customer service, reliability and speed. This continues to be our competitive advantage," explained Charlo Carabott, managing director of Mazuma Mobile.
To date, more than 1.5 million people have recycled a mobile with Mazuma.
Posted by Claire Marshall
Magic your old mobile into cash now – http://www.mazumamobile.com/