McMouse...not sure how zero hours contracts and guaranteed hours contracts can be similar ? The clue is in the title surely ? If zero hours was applied to your call centre, then you could have the situation where people are not been offered any work but prevented from taking another job, because they have to make themselves available. OK for people who only need a few hours money but entirely useless to someone who has to run a home.
The only reason I find my work and its hours convenient is that I have a small pension coming in every month. If these flexible hours were around 30 years ago, it is highly unlikely that I would have been able to get a mortgage. I can't imagine how people manage when the hours are so uncertain.
Your experience of people clamouring to work at your call centre is indicative of the desperation of people to find employment these days.
Proper jobs, proper wages is what is needed.
Amazon is one of the worst perpetrators of bad working practise ::
http://www.dailymail.co.uk/news/article-2382800/Tagged-bosses-zero-hour-Amazon-workers-Employees-guaranteed-income.html
I used to buy from Amazon but haven't since 2011 precisely because of the shocking way that they treat people. And Amazon don't seem to see the need to pay any tax in Britain either !!!!
Its also worth pointing out that these workers are paid so little, that they are still able to claim social security benefits at the same time. So tax payers are subsidising shyster companies, allowing them to make huge profits. How should we tax payers feel about that ?