Andy Taylor, a retail manager from Leighton Buzzard, also said that he was upset about Amazon using more plastic packaging. "I've had a few of these deliveries recently," he told the BBC.

"They almost seem to be completely blind to the shift to more ecologically sound practices generally by business."

Is there a sound reason for opting for plastic rather than paper envelopes? Not according to the Confederation of Paper Industries.

A spokesperson for the CPI said: "Not only is paper and cardboard a uniquely renewable, recyclable and re-usable resource, it's also strong and flexible enough to keep goods safe while in transit making it the perfect packaging material.

"Many supermarkets, shops on the high street and online retailers have been making the switch from plastic to cardboard for their packaging recently and it's a trend we would like to see continue."

Alex wants Amazon to rethink its plans. She said: "Even if the plastic is recyclable I am not confident that it all gets recycled, so where does it end up?

"Also Amazon's move places the onus on the customer. I don't believe creating plastic packaging and then expecting consumers to recycle it is the answer."