Pensioner George Haynes says he's been plagued by nuisance calls in recent years.
"They became more and more frequent and now average about two to three a day," he says.
"The most I've ever had in a day is nine."
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The decision comes after a campaign led by Plaid Cymru and Rhondda Cynon Taf councillor Elyn Stephens to eradicate period poverty.
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