There are many actual reasons for this.
Last year:
This is hugely damaging to both your brand and your budget.
A great deal of time and effort goes into collecting data, yet each day it decays in relevance and quality, reducing the impact if marketing communications, and even meaning essential information goes to the wrong place or person.
£18m a year is wasted mailing the deceased and is a major cause of ID theft, costing the UK over £200m. We can save your money and your reputation.
If you collect data on the web you will end up with a high proportion of unusable records which are not only a complete waste of money but hugely damaging to your brand. Cleansing will directly affect the immediate success, the actual campaign cost and most importantly your customer's perception of your business and brand.
In most cases we'll give you a free data health check, to ascertain the quality of your data. We will tell you how many deaths, incorrect address, gone-aways and TPS or MPS registered prospects your data contains.