but where is the sting?
Building a list of valid names addresses and emails is probably enough to sell to certain marketing companies.
They are also finding out if you are available on certain dates (will you be at home or will your house be empty).
The message falls down on so many levels that it seems very poor.
Translation to English is poor
Use of Zip code for a UK contact
And most fundamentally...
A wedding planner who will be too busy to organise the wedding so you have to help them?
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