Your post gave me a hint. I've gone through all their toggle mobile countries and except Switzerland, they show for ALL toggle countries without a local number (even UK)
calls 18p
incoming 4p
SMS 5p
maybe their underlying roaming IMSI provider has changed rates?
BK
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Mobiles: iPhone 7+, iPhone 7, iPhone SE, Blackberry Priv, Honor 8, Lumia 950
Prepaid-SIM: 3 UK, Save Money Sim, Toggle Mobile UK, XX-Sim, Koko Mobile