Although Essex was named the most romantic part of the UK, the towns of Kent followed in close second.
Dartford, Rochester, Canterbury and Tonbridge - which are all covered by the Medway Mail Centre - also saw a dramatic 19.46% boost in Valentine's Day mail.
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Stamp duty is to be abolished for first-time buyers on properties up to £300,000, Chancellor Philip Hammond has announced in his Budget.
The money will help pay for mental health and counselling services, regeneration in the west London neighbourhood and a new community space.
The small device was hidden in a grate in the ceiling in the only customer toilet at a Starbucks coffee shop.