It depends on your working experience. Those with N or O level without experience get a starting salary of about 1.4k a month. But it depends on what company you work for.
Why dont you go to www.jobsdb.com.sg and look for keyword "customer service"
Do you also get very poor services from telcos (or other services) when you call in to request as follow up on a service? I was put on hold for more...
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Yes indeed..not only that to get to them you have to press multiple times of options to get there.